• Published native binary wheels to PyPI for all the python minor versions and platform and architectures currently supported that would benefit from this. They will include precompiled Cython-accelerated modules (e.g. cu2qu) without requiring to compile them from source. The pure-python wheel and source distribution will continue to be published as always (pip will automatically chose them when no binary wheel is available for the given platform, e.g. pypy). Use pip install --no-binary=fonttools fonttools to expliclity request pip to install from the pure-python source.
• [designspaceLib|varLib] Add initial support for specifying axis mappings and build avar2 table from those (#3123).
• [feaLib] Support variable ligature caret position (#3130).
• [varLib|glyf] Added option to --drop-implied-oncurves; test for impliable oncurve points either before or after rounding (#3146, #3147, #3155, #3156).
• [TTGlyphPointPen] Don't error with empty contours, simply ignore them (#3145).
• [sfnt] Fixed str vs bytes remnant of py3 transition in code dealing with de/compiling WOFF metadata (#3129).
• [instancer-solver] Fixed bug when moving default instance with sparse masters (#3139, #3140).
• [feaLib] Simplify variable scalars that don’t vary (#3132).
• [pens] Added filter pen that explicitly emits closing line when lastPt != movePt (#3100).
• [varStore] Improve optimize algorithm and better document the algorithm (#3124, #3127).
  Added quantization option (#3126).
• Added CI workflow config file for building native binary wheels (#3121).
• [fontBuilder] Added glyphDataFormat=0 option; raise error when glyphs contain cubic outlines but glyphDataFormat was not explicitly set to 1 (#3113, #3119).
• [subset] Prune emptied GDEF.MarkGlyphSetsDef and remap indices; ensure GDEF is subsetted before GSUB and GPOS (#3114, #3118).
• [xmlReader] Fixed issue whereby DSIG table data was incorrectly parsed (#3115, #2614).
• [varLib/merger] Fixed merging of SinglePos with pos=0 (#3111, #3112).
• [feaLib] Demote "Feature has not been defined" error to a warning when building aalt and referenced feature is empty (#3110).
• [feaLib] Dedupe multiple substitutions with classes (#3105).